/*
 * Copyright (c) 2012 Robert Burrell Donkin robertburrelldonkin.name
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
 * and associated documentation files (the "Software"), to deal in the Software without restriction, 
 * including without limitation the rights to use, copy, modify, merge, publish, distribute, 
 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software 
 * is furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all copies or 
 * substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 */
package name.robertburrelldonkin.alfie;

import java.util.Collection;
import java.util.concurrent.ConcurrentLinkedQueue;

public class Cogs {

	private final Collection<Cog> cogs;
	private final Source source;

	public Cogs(final Source source) {
		super();
		cogs = new ConcurrentLinkedQueue<Cog>();
		this.source = source;
	}

	public Cogs manage(Cog cog) {
		cogs.add(cog);
		return this;
	}

	public Cogs start() {
		for (final Cog cog:cogs) {
			cog.start();
		}
		return this;
	}

	public Cogs perform() {
		source.open();
		return this;
	}

	public Cogs finish() {
		source.close();
		for (final Cog cog:cogs) {
			cog.waitTillFinished();
		}
		return this;
	}

}